Product details:

BTUs: 135 00036L x 19W x 23H in.2900 sq. ft. range120 volts. About Dura Heat Since 1982, DuraHeat has been designing gas heaters and other heating products with an eye for safety and value. From the quite small to the industrially large, their heaters are all designed to get you and your home through the tough winter months - DFA135C.